These drivers are for the following operating systems:

Windows 7
Windows 10

Link for drivers: http://www.jcgtechnologies.com/ftp/Audio/u46xl/u46xl/U46_XL-v3_811.zip 

Link for Installation Instructions: http://www.jcgtechnologies.com/ftp/Audio/u46xl/u46xl/U46XL_Installation_Instructions.pdf